demandsupplymarketequilibrium-資料下載頁
2025-08-10 18:34本頁面
【導(dǎo)讀】Quantitydemanded(Qd). Inesofconsumers(M). (,,,,,)dReQfPMPPN??dReQabPcMdPefPgN????????b=?Qd/?Pisnegative. c=?Qd/?Mispositive. c=?Qd/?Misnegative. d=?Qd/?PRispositive. d=?Qd/?PRisnegative. f=?Qd/?Peispositive. g=?Qd/?Nispositive. e=?Qd/?ispositive??Qd=f(P). LawofDemand. Qd/?Pmustbenegative. Traditionally,price(P)isplottedon. Changeindemand. Quantitysupplied(Qs). Inputprices(PI). (,,,,,)sIreQfPPPTPF?k,l,
【正文】 Shifts (Supply Constant) (Figure ) Managerial Economics 230 Supply Shifts (Demand Constant) (Figure ) Managerial Economics 231 Simultaneous Shifts ? When demand amp。 supply shift simultaneously ? Can predict either the direction in which price changes or the direction in which quantity changes, but not both ? The change in equilibrium price or quantity is said to be indeterminate when the direction of change depends on the relative magnitudes by which demand amp。 supply shift Managerial Economics 232 S D’ S’’ S’ D Simultaneous Shifts: (?D, ?S) Q Price may rise or fall。 Quantity rises P ? A Q P B ? P’ Q’ Q’’ C ? P’’ Managerial Economics 233 D Simultaneous Shifts: (?D, ?S) S D’ S’’ S’ Q Price falls。 Quantity may rise or fall P ? A Q P B ? P’ Q’ Q’’ C ? P’’ Managerial Economics 234 S’’ Simultaneous Shifts: (?D, ?S) D S D’ S’ Q Price rises。 Quantity may rise or fall P ? A Q P B ? P’ Q’ Q’’ C ? P’’ Managerial Economics 235 Simultaneous Shifts: (?D, ?S) S’’ D S D’ S’ Q Price may rise or fall。 Quantity falls P ? A Q P B ? P’ Q’ Q’’ C ? P’’ Managerial Economics 236 Ceiling amp。 Floor Prices ? Ceiling price ? Maximum price government permits sellers to charge for a good ? When ceiling price is below equilibrium, a shortage occurs ? Floor price ? Minimum price government permits sellers to charge for a good ? When floor price is above equilibrium, a surplus occurs Managerial Economics 237 Ceiling amp。 Floor Prices (Figure ) Qx Quantity Price (dollars) Qx Px Px Quantity Price (dollars) Sx Dx 2 50 1 62 22 3 32 84 Panel A – Ceiling price Sx Dx 2 50 Panel B – Floor price
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